DE.TECT Linear Heat Detection

DE.TECT is a robust linear heat detection system based on optical fibers. With a range of up to 10 km and a sampling interval down to 25 cm, the system is ideal for fire detection in tunnels and metros as well as large facilities like warehouses and industrial facilities. In addition, the fiber optic system is well suited for hazardous environments such as those found in chemical plants, coal storage facilities, mining conveyor belts, or other facilities requiring ATEX certification. DE.TECT offers fast, accurate and reliable linear heat detection in any environment.

The DE.TECT linear heat detection system is easy to integrate into fire management systems. It can be configured with one, two, or four channels each providing up to a 10 km range (6 km for a four-channel configuration).

Each channel has 1000 programmable zones that can all be set up with individual alarm and pre-alarm criteria for highly granular and precise fire detection. Combined with the high sensitivity and fast response time, this ensures the quickest possible fire detection and precise localization of the source.

A linear heat detection system must meet the highest requirements for reliability and in this regard, the DE.TECT system is exceptional. The controller has no moving parts, it is immune to electromagnetic disturbances, and it has a Mean Time Between Failure of more than 45 years, ensuring reliable fire detection in even the toughest environments.

With thousands of Luna linear heat detection systems installed Worldwide, the DE.TECT system is the standard within linear optical heat detection and the system behind the successful FibroLaser fire detection equipment from SIEMENS.


  • Quick fire detection and precise localization of the source
  • Information on the magnitude and direction of the fire spread
  • Alarm and pre-alarm for each zone
  • Selectable alarm and pre-alarm criteria
  • Sampling interval down to 0.25 m
  • 10,000 m detection range
  • Easy to integrate into fire management systems


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1 Channel Models 1, 2, 4, 6, or 10 km sensor cable (distance range)
2 Channel Models 1, 2, 4, 6, or 10 km sensor cable per channel
4 Channel Models 1, 2, 4, or 6 km sensor cable per channel

Electrical Data

Programmable Inputs 4 (Optional up to 40)
Programmable Outputs (potential-free) 12 (Optional up to 106)

Mechanical data

Controller 19" rack / 3 units of height
Dimensions (HxWxD) 13.5x44.9x29 cm
Weight 13 kg

Electrical data

Operating Voltage (DC Controller) DC 12 ... 48 V
Mains Voltage (AC Controller) Ac 100 ... 240 V
Power Consumption (DC Controller) <25W (max. 45 W/60°C
Communication interfaces LON, TCP/IP, Modbus, RS232, USB

Optical data

Fiber type Gradient index 62.5/125 µm multimode
Optical Connector E2000 / APC
Laser Clasification Class 1M (EN60825-1)

Environment Conditions

Storage Temperature -35 ... +75°C
Operating Temperature -10 ... +60°C
Humidity (non condensing) ≤95% rel.
Protections class (IEC 60529) IP51


VdS (pr EN 54-22) G 211030, response classes A1N, BN, CN
UL S25135


Our linear heat detection systems are practical, field-tested, and approved

Driven by demanding requirements from today’s safety market, DE.TECT provides a highly proven product based on fulfilling international quality standards recognized by the

  • VdS (Association of German Property Insurers)
  • prEN 54-22 Class A1N
  • ISO 9001 and ISO 14001
  • TÜV Rheinland n CE (Electromagnetic Compliance, Europe)
  • UL 521, ULC S530 spacing up to 50ft
  • ATEX certified